public func solution(_A : Int,_B : Int,_K : Int)->Int
{
var n :Int=0
ifA%K==0
{
n =A/K-1
}
else
{
n =A/K
}
returnB/K- n
}
public func solution(_A : Int,_B : Int,_K : Int)->Int
{
var n :Int=0
ifA%K==0
{
n =A/K-1
}
else
{
n =A/K
}
returnB/K- n
}